Dust-collector.



c. F. GREENE.

DUST COLLECTOR. APPLICATION FILED II AY 25| 191?- shins-shin I. z r

: Pat ented Dem 1.1917.

cles of 'rock and dust that hereinafter cannon r.- Gamma,

SOUTH DAKOTAQ DUST-COLLECTOR.

Patented Dec. 4, 1911'.

Application flied Kay 25, 1917. Serial No. 171,018.

To-all whom it may concern: I Be it known that I, CLAYTON F. Gunmen, a citizen of the United States, residing at Lead City, in the county of Lawrence an State of South Dakota, have invented new and useful Improvements in Dust-Collectors, of which the following is a specification. This invention relates to earth boring, and more especially to dust collectors for drills; and the object of the same is toproduce a telescopic tubular guard tosurround a drill, andmoreespeeially a rock drill or one. for use in a mine, which will receive the parti fall out of a hole being drilled upward and deliver the same to a suitable waste pipe, and which will alsoprotect the operator from injury in case the drill should break or slip. Theseand other objects are accomplished by constructing the device in the manner more claimed, a d as shown in the drawings mounted on a drill ready the same being and other substance,

wherein y I Figure 1 is a side elevation of'this device for use.

Fig. 2 is a central vertical enlarged detail of the tubular guard itself, and Fig. 3 is a cross section on the line 3-3 of Fig. 2 r

Fig. 4 is a perspectivedctail ofone of the yokes, and Fig. 5 a perspective detail of the other,

Fig. 6 is aside elevation of the collar, and

, Fig. -7 is a side-elevation of the drill guide. In the drawings 1 have used'the letter I) to designate a drill, which is actuated by a chuck G into which its lower end is inserted, driven by any suitable means not necessary to describe inthis connection; In the presentcase the upperiend or point of the drill is supposed to embed the rock whose lower face or wall is indicated at W, and as the drill is fed upward itproduoesa hole H out of which of course pleces of rock, coal, 7 and always a quantity of dust falls into the eyes of the operator standing beneath, breathed by him; in fact,this is considered in metal mining as one of the prevailing cipally of a 5-5;

eauses of whatis known as sumptlon, and 1t is one of the objectsof the present invention to avoid contracting the same.

My improved dust collector consists printubular telescopic guard, shown herein as made up of five memb rs numbered Fig. 3. The lower end of th fully described and 'is disk 15 preferably of this disk is lar gui threads -as shown in F1 mg. ears and must of necessity be. v

rods 2'6hea ed at their upper and lower ends.

'miners con-. coiled spring 28.

. 1 2, 3,4 and 5 in Fig. 1, and progressively is screwed the bell mouth 7 of an upwardly flarin'g hopper 8, the upper or open. end of the same being intended for the face W of the wall of rock as seen in is member 1 and the lower end of each member, is flared as shown at 10 to produce an outstanding flange rotatably or swivelly engaged with an intur'ned flange 11 at the upper end of the member next beneath, and a strengthening ring ornut 12 may be screwed intot e lower end of each member as seen. The lower and contact with UNITED STATES PATENT OFFICE. i p.

or man our, sour-n naxo'ra, asszenoa or ONE-HALF 'ro Joni! sannnorr, or man our,

of the lower member 5 isinternally threaded as at16, and engaged with these threads are externalthreads at the upper end of a collar 17 around which may be swivelly mounted a ringlB. Either the ring or the collar is adapted for attachment in any suitable man-- unto the shell of the chuck C, the. form of attachment being immaterial andthere'iore not described in detail. Resting on the shoulder at the upper end of the collar 17 threaded on its edge as at 18- to engage the'threads 16 within the lower member 5, and through the center formed an upstanding tubude 13. Th

and a guide of that type will be emwhen the drill-shank is square and It is quite obvious,

Fig. 3, p y d the drill reciprocates.

however, that a 'eyllndrical guide could be substituted, and doubtless one will be used is guide is shown square in when the drill-shankis round and the drill rotated by its motor within the chuck.

For distendinp; the sevc'ralmembers nor- =ma11y, there is secured .upon the lower niem ber 5 in any suite-hie way-perha8s by 4,-a yo e 2 hav 21 provided with openings 22, and there is fastened on the upper member 'l a yoke 23 havingsimilar earsflei with openings Throu h-the openings 22 and 25 pass as at 27, and on each rod is a stout expansive The normal tendency of these sprlngs is to spread the two yokes apart'and therefdre to separate the upper and lower members 1 and 5 of the telescopic guard, so that the flanges 10 and 11 atthe meeting ends of all members are drawnoutward to their limit as seen in 2. A stop i prints receptacle,

I disk mu; Also 80 is preferably provided at an appropriate point in the lower member 5, so that the next member 4 above it can not be teleseo toofar downward, or in other wordeaot at the flange 11 at the lower end of the member 4 eannotbe pressed downward flat onto the 15 which supports'theguide 18. e numeral 82 designates an inlet pipe for the admission of water, and the numeral 88 designates an outlet for the escape of waste, 'bywhich term I mean water mixed with dirt, dust and particles' of metal and stone. I have shown no hose or valve for admitting water, but its supply and control are obvious details not necessary to illusthe outlet or wasto pipo 33 may be connected by-hoae with.an approorthe outlct hose or pipe ed into a gutter or channel so that t o waste will not run onto the feet of the op erator.

, through the In use, the parts are assembled as seen in Fig; 1,-and the operator goes to work. Rnisin'g' the point of the drill D, he enters itinto the face W of'the rock or wall overhead, and turns on the power. The borin 5. fall out the hole H into and opper 8, intn and through the upper member 1, and no on downward around the drill and from time to time the operator admits water throughthe pi 82, or he may permit it to flow' in constant J 'toa'limitcd extent. This wltermixes l I the borings, dirt, and dust, and the some g ipefliinnd carried away to a suitable point.

'often the case, that nl'e-n'nsed or washed out through-tho waste herofore therefnm does not fall into the face of the operator, :mdlitlis not even in tllelll' which he is brcnthin;r. .-\s the drill moves upward within the hole ll, borne in that direction by pressure upward'ou the chuck C the tubular guard. telescopes asthe. slidni ile'ongngemont of its sovornl members with each other penning-and of'course the springs 28 yield as theyokcs approach each other. If now it should happen, as.is

the drill breaks, the operator is not injured by the Ilvin pieces orhy'the sudden Inngo-fonvan w rich rcsnlts, because the of tho drill as it did contain the whole drill nmlj any forward -or upward movement is chshioned hy'tho'ex nnsii'c springs. 'The 2 da-ill -may heroplnccil hynlonge'r one or 'a nhn'rper one at. any tuuo,- by dropping the entire device and applying a suitable tool to tho drill-D above thehoppor- 8; in other lord' dms-no thnvc to be taken ruck topormit tho attachment and disconnection-of the drills. The device mg said members ing means for holding them norm mid contains the pieces I details further than is necessary.

1 at is claimed-es new is:-

(lrills, the same comprising a tubular guard made up of telescopic members adapted to surround the. drill between its point and its driving mechanism, and means for holdnor-mall distended.

2. The herein dcscribcd-dhst collector for drills, the some comprising a tubular guard made up of a series of tubular members progressively increasing in size and each telescopically mounted on the next, menus for preventing their complete disconnection with eachv other, 'yokes fixed around the endmost members and having out-stnndin perforated ears, rods passing through eait extremities, and expansive springs coiled on the rods between the ears 8. The herein described dust guard for drills, the some consisting of a tubular guard made up of pi 2 sections respectively increasing m sizc' rom one cm guard tot'he other and telesco icalty mount ed one on the next, means or preventm their complete separation, means for he] ing the sections normally 'hopper on the smallest section for sqrroumi ing the drill-hole. 4 4. The herein described dust guard for drills, the same consisting The herein described dust collector for of the perforations in pairs and headed at their distended, and a n of e tubular gnard made up of pipe sections rea'pectiv'el 96- .ie guar increasing in size one end of t to the other and telescopically mounted one .on the'next, at each meeting point between sections an outturned flan can the smaller and an intnrned flange on t ll. larger sections for preventin their comp] Inc-nus '.f0r ho ding the sections normally distended and 'a hollow element carried by the outer end of the smallest section for in closing thedrill hole. .5. In .a dust guard for drills, the; comb nation with a series of telescopic. tuhnitr rre mt fifi l y distcnded; means for rreventing' their oomrl m Mien, e 'l lp J @W'PY the sme leetsect-lon; of e dwig nemss-the an-- sections with "the smallest tcrior of the largest section, impressing.

wells of this section, tor t forth:"'=:

oasssn;

he pu rposepet f lee " hereof ilix myfsignatuirep 

